98 Nissan Sentra fuel injector pigtail

Tiny
TARANB
  • MEMBER
  • 1998 NISSAN SENTRA
  • FWD
  • AUTOMATIC
  • 160,000 MILES
Where can I find replacement fuel injector pigtail or the whole wiring harness for my 98 Nissan Sentra GXE? Shop says it's not possible to order it but that's hard to believe and I don't trust pulling one from a junkyard vehicle.
Tuesday, January 11th, 2011 AT 10:55 PM

7 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Have you tried on the internet? What exactly is wrong with the harness? Knowing that could help with my response.
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Wednesday, January 12th, 2011 AT 1:24 AM
Tiny
TARANB
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I have tried to search the internet but can't seem to find it. The 3rd plug from the left is acting up. I had previously had a misfire in injector 4 and found out it wasn't working by using a screwdriver to listen for the clicking, so I replaced it and everything was running great for a while. Now it's having the exact same choking symptoms except it goes in an out randomly instead of being a steady rumble. It will idle super smooth for a few seconds, then start******** really bad, then back to idling smooth, etc. When I went to listen to the injectors, they are clicking fine, but when I bump the wire connected to the 3rd one I can reproduce the symptoms. It doesn't happen when I touch the other ones, only the 3rd. The connector itself is not loose, it just idles horribly when I move the wire a little. The service engine light is on during all of this.
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Wednesday, January 12th, 2011 AT 4:11 AM
Tiny
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Thanks for a clear explanation, it really helps. I recommend that you splice in another injector connector and not replace the entire harness. The connector is easy to get brand new as it is an industry standard (almost all car makers use the same type of fuel injectors) just be aware that there is polarity for fuel injectors. Does this seem reasonable? BTW, I tend to agree with you about being hesitant to replace the harness as a complete unit when it is obvious you have found what seems to be the "smoking gun" good work! PS, the injector may be at risk as well, you may need to consider replacing #3 injector too.?
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Wednesday, January 12th, 2011 AT 3:05 PM
Tiny
TARANB
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Thank you for your help. I thought it seemed funny that the shop would say they can't get the part because I just knew that these connectors couldn't possibly be that proprietary. They did tell me that if I could find one for it, they would put it in but wouldn't guarantee the work, which is fine, I just don't have the equipment or skills to put it in myself. How would I go about finding out what the polarity is on the existing one? When I go to buy the new part, will it tell me the polarity in the item description?
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Wednesday, January 12th, 2011 AT 7:05 PM
Tiny
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Let's say you inspected the one on the car, there will be color on the wires. BMW uses brown as a ground indication color. The Japanese car makers might use something else. As long as it goes in the same way, one trimmed off of any car maker that utilizes those injectors will have the same connector and the color does not matter, only polarity. If the shop says "Bring us one and we will install it" then try that and let us know how you fare.
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Wednesday, January 12th, 2011 AT 8:15 PM
Tiny
TARANB
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I know this is really late but I forgot to come back and reply. I went to a couple of stores nearby and both said they didn't have what I needed, so I ended up pulling some off a vehicle in the junkyard. I got it spliced in without any problems and the issue has not returned. Thank you so much for the input, I appreciate it. :)
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Tuesday, July 19th, 2011 AT 6:45 PM
Tiny
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Thanks for letting us know taranb
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Friday, October 7th, 2011 AT 12:07 AM

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